Some New Band Characteristics in One-Dimensional Plasma Dielectric Photonic Crystals

• 来源期刊: 等离子体科学和技术：英文版
• 学科: 工学
• 关键词: 一维光子晶体 等离子体层 色散特性 电介质 超晶格结构 电磁波传播 传输矩阵方法 偏振分光器
• 年，卷（期）: 2011,（4）
• 页码范围: 392-396
• 页数: 5页
• 分类号: O734|TN011
• 语种: 英文

摘要

Propagation of electromagnetic waves in one-dimensional plasma dielectric photonic crystals, the superlattice structure consisting of alternating plasma and dielectric materials, is studied theoretically for oblique incidence by using the transfer matrix method. Our results show that complete photonic band gaps for all polarizations can be obtained in one-dimensional plasma dielectric photonic crystals. These structures can exhibit a new type of band or gap, for the incidence other than the normal one, near frequencies where the electric permittivity of the plasma layer changes sign. This new band or gap arises, from the dispersive properties of the plasma layer, only for transverse magnetic polarized waves, and its width increases with the increase in incident angle. This differential behavior under polarization can be utilized in the design of an efficient polarization splitter. The existence of both photonic gaps and resonance transmission bands is demonstrated for experimentally realizable structures such as double electromagnetic barriers.